Method for intelligently controlling rapid constant-water-level operation of drainage pumping station

Abstract

The invention discloses a method for intelligently controlling rapid constant-water-level operation of a drainage pumping station. A fuzzy reasoning algorithm is superposed on the basis of the traditional PID control principle to form a fuzzy PID control method, and the fuzzy PID control method is applied to rapid constant-water-level operation of the drainage pumping station and accurate control of the liquid level of the drainage pumping station under dynamic load change. The deviation e between the current liquid level value and the expected constant liquid level and the change ec between the current liquid level deviation and the last liquid level deviation serve as input, the control quantities delta Kp, delta Ki and delta Kd of the PID controller are calculated through a fuzzy control rule, and therefore self-adaptive setting of parameters of the PID controller is achieved, and the purpose that the controlled liquid level is fast and stable is achieved. And the purpose of constant liquid level control with higher response speed and higher stability is achieved. A fuzzy setting table modeled by technical knowledge and actual operation experience is suitable for accurate control under a dynamic working condition.

Description

technical field [0001] The invention relates to the field of water supply and drainage, in particular to a method for intelligently controlling rapid and constant water level operation of a drainage pump station. Background technique [0002] The main function of the urban drainage pumping station is to collect upstream water and upgrade it to the downstream process link. It is necessary to adjust the lifting water volume in time according to the upstream water flow, and control the pumping station liquid level within a reasonable range to ensure that the pumping station itself and its upstream do not overflow. With the rapid advancement of urbanization, the construction of urban drainage pipe network has become more and more complicated, and the instability of the upstream water flow of drainage pumping stations has increased. At the same time, the refinement of urban management has higher requirements on the drainage system. The coordinated dispatching effect between diffe...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of large water level fluctuations and unstable water level adjustment in drainage pumping stations in the prior art, and to provide a fuzzy self-adaptive intelligent control system with fast response, small overshoot, strong robustness, and adaptability to changes in object parameters. Method of Controlling Fast and Constant Water Level Operation of Drainage Pumping Station

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